One way to tell that Jordan Peterson isn’t a Dominant Ni is that when you hear him talk, you don’t really experience the kind of tension/friction in your mind/brain unlike some of the other historical Dominant Ni figures. Of course, when it comes to historical figures, their writings could be used in lieu of them talking/speaking.

This is why I'm pretty confident Elon Musk is INTJ.

The beautiful thing about being a Dominant Ni yourself is that you can get other Dominant Ni persons even with the so-called tension/friction in the mind/brain.

"So all that was great in the past was ridiculed, condemned, combatted, suppressed — only to emerge all the more powerfully, all the more triumphantly from the struggle." – Nikola Tesla

Some people say Flat Earthers need to be taken into space so they can see the curvature of the Earth. The problem is, they’ll probably claim that the windows in the spacecraft are actually computer screens or that they were drugged or something.

"So all that was great in the past was ridiculed, condemned, combatted, suppressed — only to emerge all the more powerfully, all the more triumphantly from the struggle." – Nikola Tesla

Are you aware of how much of what you write is thoroughly ambiguous?
I'd always assumed, from what you'd written about it, that you were a flat-earth enthusiast.
Just like I'd always assumed, until recently, that you were a leftist...